Hua Jiang Hu Zhu Bu Liang Ren Season 3 画江湖之不良人 第3季

The story takes place during the Tang Dynasty and revolves around a secret government agency trying to obtain a national treasure weapon called the dragon sword. To do that, they assassinated two great martial artists, leaving their kids to survive in the chaotic world. Elder Yang brought them and taught them martial arts. In their journey in Jianghu to uncover the conspiracy of the secret group, they meet the love of their lives in Cai Wen Jing and Fan Shi Qi